According to a source with BusinessInsider.com, Facebook co-founder Eduardo Saverin has sold $500 million worth of Facebook stock on a private market. If you have seen the movie The Social Network, you will know that Saverin was fired from the company and his stock was diluted to less than 0.5%. Frustrated by the stock dilution, Saverin shared his story with The Accidental Billionaires author Ben Mezrich. The Social Network is based on that book. Saverin has been using some of his wealth to invest in other Internet companies such as Jumio and Qwiki.

If you want to get your hands on the newest version of Firefox, you can download it now from their FTP servers. It currently is not available from the Firefox homepage. Some of the new features in Firefox 4 include hardware acceleration, HTML5/CSS3/WebGL standards, built-in Sync, and Panorama workspace management. You can download it from these links:
- Windows
- Mac OS X
- Linux

[Download Squad]

Facebook is currently testing a check-in service for people that use the events section on the iPhone Facebook app. “We’re currently testing this and it will be available with the next iPhone release,” stated a Facebook spokesperson. The check-in icon shows up on the day and time of the event. It will also only show up if the user is geographically close to the event’s address.

Twitter has turned 5 years old and has launched a new website that features how celebrities and influencers use the service. Discover.twitter.com lists the influencers that are featured in the video such as Martha Stewart (TV star), Snoop Dogg (rapper), Serena Williams (tennis player), Richard Branson (Virgin CEO), Paolo Nespoli (astronaut), John Boehner (speaker for the House of Representatives), and Secretary of the State Hillary Clinton. Check out the video below:

Google Inc. (NASDAQ:GOOG) has been fined 100,000 euros ($142,000) by France for collecting private information while grabbing pictures from the Google Street View cars. Google launched Street View in 2007, which offers panoramic views of cities and towns. The service was not well received in Europe. In 2010, Google admitted wrongdoing for accidentally picking up private unencrypted data such as passwords and e-mails through open WiFi connections. CNIL, the National Commission for Information Freedom, said that Google made a pledge to erase the private data. The fine was for “unfair collection” of information. [AFP]

YouTube has launched a channel called YouTube Person Finder (????). YouTube Person Finder is a channel that aggregates video messages from those who suffered from the earthquake and tsunami in Japan. YouTube is adding 80 video messages shot at shelters by TBS. TBS is a large TV station in Japan. YouTube is also adding videos shot by individuals that were impacted there. [YouTube Blog]

Google Inc. (NASDAQ:GOOG) is accusing the Chinese government of interfering with Gmail. The Chinese government is cracking down on the “jasmine revolution,” a codename for for cracking down on a movement inspired by the events in the Middle East.

Groupon CEO Andrew Mason said that the company placed too much trust in ad agency Crispin Porter & Bogusky (CP&B) for their Super Bowl commercials and they fired them for it. This is a different perception Groupon portrayed as they defended the controversial ads shortly after they aired.